/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at legal-notices/CDDLv1_0.txt
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* or http://forgerock.org/license/CDDLv1.0.html.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at legal-notices/CDDLv1_0.txt.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Copyright 2008-2010 Sun Microsystems, Inc.
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* Portions Copyright 2013-2016 ForgeRock AS.
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*/
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package org.opends.guitools.controlpanel.util;
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import static org.opends.messages.ConfigMessages.*;
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import java.io.File;
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import java.io.FileFilter;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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import org.forgerock.i18n.LocalizableMessage;
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import org.forgerock.i18n.LocalizedIllegalArgumentException;
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import org.forgerock.opendj.config.server.ConfigException;
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import org.forgerock.opendj.ldap.ResultCode;
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import org.forgerock.opendj.ldap.schema.AttributeType;
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import org.forgerock.opendj.ldap.schema.MatchingRule;
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import org.forgerock.opendj.ldap.schema.SchemaBuilder;
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import org.forgerock.opendj.ldap.schema.Syntax;
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import org.opends.server.config.ConfigConstants;
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import org.opends.server.core.DirectoryServer;
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import org.opends.server.core.SchemaConfigManager;
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import org.opends.server.schema.SchemaConstants;
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import org.opends.server.types.DirectoryException;
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import org.opends.server.types.InitializationException;
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import org.opends.server.types.ObjectClass;
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import org.opends.server.types.Schema;
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import com.forgerock.opendj.util.OperatingSystem;
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/** Class used to retrieve the schema from the schema files. */
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public class SchemaLoader
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{
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private Schema schema;
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private static final String[] ATTRIBUTES_TO_KEEP = {
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ConfigConstants.ATTR_ATTRIBUTE_TYPES_LC,
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ConfigConstants.ATTR_OBJECTCLASSES_LC,
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ConfigConstants.ATTR_NAME_FORMS_LC,
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ConfigConstants.ATTR_DIT_CONTENT_RULES_LC,
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ConfigConstants.ATTR_DIT_STRUCTURE_RULES_LC,
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ConfigConstants.ATTR_MATCHING_RULE_USE_LC };
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private static final String[] OBJECTCLASS_TO_KEEP = { SchemaConstants.TOP_OBJECTCLASS_NAME };
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private final List<ObjectClass> objectclassesToKeep = new ArrayList<>();
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private final List<AttributeType> attributesToKeep = new ArrayList<>();
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/** List of matching rules to keep in the schema. */
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protected final List<MatchingRule> matchingRulesToKeep = new ArrayList<>();
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/** List of attribute syntaxes to keep in the schema. */
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protected final List<Syntax> syntaxesToKeep = new ArrayList<>();
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/** Constructor. */
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public SchemaLoader()
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{
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Schema sc = DirectoryServer.getSchema();
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for (String name : OBJECTCLASS_TO_KEEP)
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{
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ObjectClass oc = sc.getObjectClass(name.toLowerCase());
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if (oc != null)
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{
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objectclassesToKeep.add(oc);
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}
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}
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for (String name : ATTRIBUTES_TO_KEEP)
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{
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if (sc.hasAttributeType(name))
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{
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attributesToKeep.add(sc.getAttributeType(name));
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}
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}
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matchingRulesToKeep.addAll(sc.getMatchingRules());
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syntaxesToKeep.addAll(sc.getSyntaxes());
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}
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private static String getSchemaDirectoryPath()
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{
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File schemaDir = DirectoryServer.getEnvironmentConfig().getSchemaDirectory();
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return schemaDir != null ? schemaDir.getAbsolutePath() : null;
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}
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/**
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* Reads the schema.
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*
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* @throws ConfigException
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* if an error occurs reading the schema.
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* @throws InitializationException
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* if an error occurs trying to find out the schema files.
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* @throws DirectoryException
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* if there is an error registering the minimal objectclasses.
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*/
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public void readSchema() throws DirectoryException, ConfigException, InitializationException
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{
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schema = getBaseSchema();
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String[] fileNames;
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String schemaDirPath = getSchemaDirectoryPath();
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try
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{
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// Load install directory schema
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File schemaDir = new File(schemaDirPath);
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if (schemaDirPath == null || !schemaDir.exists())
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{
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LocalizableMessage message = ERR_CONFIG_SCHEMA_NO_SCHEMA_DIR.get(schemaDirPath);
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throw new InitializationException(message);
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}
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else if (!schemaDir.isDirectory())
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{
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LocalizableMessage message = ERR_CONFIG_SCHEMA_DIR_NOT_DIRECTORY.get(schemaDirPath);
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throw new InitializationException(message);
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}
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FileFilter ldifFilesFilter = new FileFilter()
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{
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@Override
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public boolean accept(File f)
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{
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if (f != null)
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{
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if (f.isDirectory())
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{
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return true;
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}
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return OperatingSystem.isWindows() ? f.getName().toLowerCase().endsWith(".ldif")
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: f.getName().endsWith(".ldif");
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}
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return false;
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}
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};
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File[] schemaFiles = schemaDir.listFiles(ldifFilesFilter);
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List<String> fileList = new ArrayList<>(schemaFiles.length);
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for (File f : schemaFiles)
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{
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if (f.isFile())
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{
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fileList.add(f.getName());
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}
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}
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fileNames = new String[fileList.size()];
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fileList.toArray(fileNames);
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Arrays.sort(fileNames);
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}
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catch (InitializationException ie)
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{
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throw ie;
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}
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catch (Exception e)
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{
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throw new InitializationException(ERR_CONFIG_SCHEMA_CANNOT_LIST_FILES.get(schemaDirPath, e.getMessage()), e);
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}
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// Iterate through the schema files and read them as an LDIF file
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// containing a single entry. Then get the attributeTypes and
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// objectClasses attributes from that entry and parse them to
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// initialize the server schema.
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for (String schemaFile : fileNames)
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{
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SchemaConfigManager.loadSchemaFile(schema, schemaFile);
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}
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}
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/**
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* Returns a basic version of the schema. The schema is created and contains
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* enough definitions for the schema to be loaded.
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*
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* @return a basic version of the schema.
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* @throws DirectoryException
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* if there is an error registering the minimal objectclasses.
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*/
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protected Schema getBaseSchema() throws DirectoryException
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{
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try
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{
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SchemaBuilder builder = new SchemaBuilder(org.forgerock.opendj.ldap.schema.Schema.getDefaultSchema());
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for (Syntax syntax : syntaxesToKeep)
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{
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builder.buildSyntax(syntax).addToSchemaOverwrite();
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}
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for (MatchingRule mr : matchingRulesToKeep)
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{
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builder.buildMatchingRule(mr).addToSchemaOverwrite();
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}
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for (AttributeType attr : attributesToKeep)
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{
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builder.buildAttributeType(attr).addToSchemaOverwrite();
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}
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Schema schema = new Schema(builder.toSchema());
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for (ObjectClass oc : objectclassesToKeep)
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{
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schema.registerObjectClass(oc, true);
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}
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return schema;
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}
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catch (LocalizedIllegalArgumentException e)
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{
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throw new DirectoryException(ResultCode.CONSTRAINT_VIOLATION, e.getMessageObject(), e);
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}
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}
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/**
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* Returns the schema that was read.
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*
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* @return the schema that was read.
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*/
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public Schema getSchema()
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{
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return schema;
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}
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}
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